Fuzzy renders with latest update? What are your render settings?

I was doing some test renders tonight and noticed that they're looking much more 'fuzzy' than usual. It's really noticable on the face, especially the eyes and the mouth. I tried it with three different textures and at small and large render sizes and they look bad no matter what I do.

I tried both the default render settings and my own, which I'll list below; mine is an improvement but not enough of one. I wonder if this could be an Iray issue that's happening in the latest beta, because I sure didn't notice this decrease in quality before updating the day before yesterday.

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Min Update Samples: 5

Min Samples: 100

Max Samples: 7500

Max Time: 7200

Rendering Quality: 2

Rendering Converged Ratio: 100%

Pixel Filter Radius: 1.5

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Thanks in advance for any suggestions.

Comments

  • NovicaNovica Posts: 23,924
    edited August 2018

    My gallery image of Helena was one of many that used these settings below.  I turned the pixel filter radius down to 1.30 instead of 1.35 but otherwise, here are the settings.

    Min Update Samples: 1

    Min Samples:5

    Max Samples: 10000

    Max Time:83000

    Rendering Quality: 1  I've tested this several times, IMO all you are doing is adding to your render time. Not worth the small, if ANY difference.

    Rendering Converged Ratio:   I do 99.9% so it will shut off. 

    Pixel Filter Radius:   Change to Mitchell, Radius 1.35 (the lower, the crisper, but below 1.35 it gets noisy.)

    Turn on Noise Filter, Noise Degrain 4,  Noise Degrain Radius 3, Noise Degrain Blur Difference 0.25

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    Post edited by Novica on
  • 3Diva3Diva Posts: 11,973

    Mine varies depending on the scene. But generally it's usually around here on my renders:

    Min Update Samples: 1

    Update Interval: 5.00

    Min Samples: 5

    Max Samples: 10000

    Max Time: 20000

    Rendering Quality: 1

    Rendering Converged Ratio: 98%

    Pixel Filter: gaussian

    Pixel Filter Radius: .98

  • SnowSultanSnowSultan Posts: 3,773

    I'll try both of those in the morning here and let you know if I notice any difference. Thanks very much!

  • barbultbarbult Posts: 26,231

    Just reducing Pixel Filter Radius will make your renders sharper. 

  • SnowSultanSnowSultan Posts: 3,773

    Nah there's something weird going on, I get the exact same results no matter what settings I use. I'm going to reinstall Studio tomorrow and see if that fixes it. Will let you know, thanks again for the settings.

  • SnowSultanSnowSultan Posts: 3,773

    Can I ask what your Texture Compression settings are (in the Render Settings -> Advanced tab)? I'm still getting varied results and really can't narrow down what's wrong. I reinstalled Studio and set up a scene with Novica's render settings, but some of the textures I try have grainy eyes and REALLY grainy edge lighting.

    Also, do you have Per Pixel Shading or Pixel Buffer on in the Preferences? I don't have either on and don't think I've ever needed to before.

    Thanks in advance.

  • NovicaNovica Posts: 23,924

    Not ignoring you, been gone all day and just popping in for a few seconds. Will be back in three or four hours and will check all these for you. I don't get  grainy results so definitely something going on.

  • SnowSultanSnowSultan Posts: 3,773

    No hurry, thanks very much. I'm about to install updated nVidia drivers and see if that makes any difference. BTW, your image "Helena" was excellent, I'm very glad I saw it.

  • fastbike1fastbike1 Posts: 4,078

    @SnowSultan

    You might just double check your camera settings.

    1. Check that DOF isn't advertantly on. If so look at your focal planes. It's easy to make last minute posing and camera FOV changes and forget DOF. You won't see the effect in the viewport.

    2. Check the focal point even if you aren't using DOF. I have experienced some occasions where the render was a bit out of focus, without DOF>On, and found the camera focal distance way off of the subject.

  • SnowSultanSnowSultan Posts: 3,773
    edited August 2018

    I think the problem resolved itself; could have just needed a restart, could have been the new video card drivers, could have been the re-installation, who knows. Thank you for the help, I'm going to use Novica's render settings as my new default and thanks Fastbike for that information as well.

    Still getting a few odd results, like the grainy eyes and back of the head in this Olympia render, but most other things seem to be rendering pretty well. That render only went to about 400 iterations even with very high render settings (edit: oh and of course it got saved as a JPG which just makes it look worse than it really is). Maybe it has to do with some bump/normals being set too high (although these are the default DAZ settings)?

     

    Anyway, sorry to trouble you and thanks again for the help. If you could post your texture compression settings, I'd still like to compare them to mine, as I never completely understood the reasoning behind those values. Take care.

    olympia1.jpg
    683 x 1075 - 104K
    Post edited by SnowSultan on
  • NovicaNovica Posts: 23,924

     Okay I don't know what half of these are, but...

    Texture Compressions medium 512 and max 1024
    Spectral Rendering OFF

    In Preferences
    Per Pixel Shading Off
    Hardware Anti Aliasing ON
    Display Optimization is on Best
    Backface Lighting ON
    Texture Resources: Performance The slider is all the way over for maximum quality
    Pixel Buffer Off
    Multi Threading ON

    BTW in Tone Mapping, I usually put the Film ISO at 135 (the higher you go the more grainy you could get, I rarely go over 175 but that's just a personal thing.)  Then I change the Tone Mapping (because that doesn't move the ISO slider) to between 13.20 (lighter) to 14.20    If I'm ever over in the Environment section, then I up the Environment Intensity to 1.05, 1.10 (go slow on that, really does the job.) 

    Also, to get rid of noise depending on your lighting- I've found increasing the crush blacks in Tone Mapping helps. Usually no higher than 35ish. Probably telling you things you already know but in case someone else wants to tinker with it.

    For portraits, highly recommend the Pro-Studio HDR set (original.)  You can even use it to light indoor scenes.

  • SpottedKittySpottedKitty Posts: 7,232

    I'm going to reinstall Studio tomorrow and see if that fixes it.

    I don't see how a reinstall can fix this particular type of problem — the program settings (including render settings) are stored separately from the program, so when you reinstall, the previous settings pop right back up again. It's supposed to work this way, so we can update the program without having to remember and manually reset every single change we've ever made from the defaults. I think the last time I had to re-fix my settings was after installing D|S 4.0 or 4.5.

  • SnowSultanSnowSultan Posts: 3,773

    Thanks again Novica for the settings. Those are good tips too, I did (mostly) know about them but didn't really bother much because I do so much postwork.   :)

    SpottedKitty: Yeah, I don't know what fixed it or even if it's 100% fixed. I'm glad it doesn't completely remove the settings or we'd all be spending more time fixing the interface than rendering.  ;)

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